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Available Stones - Piedras Disponibles
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It
actually starts out as the blue asbestos mineral called crocidolite. Like
all asbestos minerals, crocidolite typically grows in long, thin fibers.
In some geologically bizarre cases, quartz replaces crocidolite and assumes
this fibrous structure, in the process often becoming stained by iron
to shades that range from golden yellow to brown; we call this material
tigereye. When a stone is properly oriented, the fibrous structure left
behind by the now-absent crocidolite intensely reflects light to produce
tigereye's characteristic chatoyance. |
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Tiger
Eye (South Africa ) TV13
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Rhodochrosite
is a manganese mineral related to the ubiquitous mineral calcium carbonate,
or, calcite. All of these minerals are soft, usually about 3 in hardness,
with three strong parting planes or cleavages. This makes cutting gemstones
from them a challenge, and setting and protecting them in jewelry mountings
even more of a challenge. The color of pure gem rhodochrosite can best
be described as a slightly orange pink-red, very close to the color of
the meat of a ripe watermelon. World-wide localities of significance include
Argentina, where it forms quantities of large stalactitic cave growths
of bright pink banded material. |
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Rhodochrosite
(Argentina) TV9mm
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Named
from the Greek chrysos - "gold" and kolla - "glue"
in allusion to the name of the material used to solder gold. It forms
in the altered parts of copper deposits and occurs with azurite, malachite
and cuprite and may suggest that copper deposits are nearby. It (obviously)
occurs in copper-mining areas, particularly Chile, the former USSR, and
Zaire. Pure chrysocolla is soft and fragile and therefore not appropriate
for use in jewelry. Occasionally, chrysocolla can have a turquoise color
and be used as a fraudulent substitute for the more precious stone. Hardness
is variable from 2 to 4. |
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Chrysocolla
(Peru) Round 9mm
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Is the result of volcanic
lava coming in contact with water. Often the lava pours into a lake or
ocean and is cooled quickly. This process produces a glassy texture in
the resulting rock. Iron and magnesium give the obsidian a dark green
to black color. Obsidian can contain small bubbles of air that are aligned
along layers created as the molten rock was flowing before being cooled.
Inclusions of small, white, radially clustered crystals of cristobalite
in the black glass produce a blotchy or snowflake pattern. Hardness is
5 - 5.5 . |
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Obsidian
(Chile) Rectangle Traverse 9mm
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From
the semiprecious stones, there is one, the strange and remarkable blue
stone called LAPIS LAZULI, which was already know before our Era by the
Pharaohes. Queen Cleopatra used it as a personal adornment, from the Latin
"lapis" - stone - and the Arabic "lazuli" - blue - is a rock composed
of various minerals. Its intense blue color is given by the "lazurita."
Rarely found chemically pure, this cherished semi-precious stone is opaque
and reaches a vitreous shine when is rigorously polished. It is a hard
stone, possessing a 5 to 6 hardness on the Mohl scale. Our planet provides
only two lapislazuli resources: one in Badakschan, Afganistan, and the
other in the Andes Mountains, east of Ovalle, a small town north of Santiago,
Chile.
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LapisLazuli
(Chile) Rev Der 9mm
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Pietersite
was first discovered by Sid Pieters in 1962 while prospecting farm land.
He registered the find in the mineral records of Britain, which was published
in 1964 naming the material Pietersite. Pietersite is formed from a crocidolite
type asbestos or variety of Riebeckite. The process begins with Hawk Eye,
the name given to the blue variety of Tiger Eye. This opaque aggregate
is formed when quartz replaces the blue/green mineral crocidolite creating
iridescent planes or fractures with a silky luster. |
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Pietersite(South
Africa) TV13mm
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a
microcrystaline variety of quartz This
stone was the favorite jewel or stone of Queen Anne of England and has
remained popular all the way through the reign of Queen Victoria. The
Greeks and Romans used the stone in cameos. The name comes from the Greek
words "Chryso" (golden) and "prason" (a leek) and
it was considered the perfect dream stone. In Egypt, the stone was set
next to Lapis Lazuli for beads and jewelry. It can be seen today decorating
many buildings in beautiful Prague, including the Chapel of St. Wencelas.
The well-known designer, Peter Carl Faberge, used it often in his exquisite
pieces. The stone is even referenced in the Bible. |
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Chrysoprase
(Chile) Cantarira 9mm
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Stichtite
is formed when the plates of the earth collide. It is a Manganese/Chromium
Carbonate-Hydroxyl/Hydride found in South Africa and Australia. It has
a hardness of 1.5-2.0 Mohs (which is relatively soft), and is usually
found as a deposit on another mineral. For being a soft stone, it really
holds together well, takes a high polish and is non-toxic. |
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Stichtite
(South Africa) 11mm TV
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Pronounced
As: malkit, a mineral, the green basic carbonate of copper occurring in
crystals of the monoclinic system or (more usually) in masses. It is translucent
or opaque; the luster is silky, vitreous, adamantine, or dull. An important
ore of copper, it also serves as a gem and for various ornamental purposes
and, when finely ground, as a pigment. It is found associated with other
ores of copper) in various parts of the United States and in Chile, Russia,
Congo (Kinshasa), Zimbabwe, and Australia. |
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Malachite
(Congo) Oval 9mm
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This
shell does not have a light underneath even tho it appears to be glowing
from within. It is a very sophisticated type of dichroic film coating
,comprised of precious metals that have been exposed to various levels
of electricity, that allows certain wave lengths of light to be relected
while opposite wave lengths or light are transmitted. This explains the
color changes as the piece is moved in different angles. Displaying these
on a dark, like a black, background enhances the reflective characteristics
fo this |
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Abalone
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